Avantor, Inc. — Director's Dealing 2021

May 7, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Avantor, Inc. (AVTR)
CIK: 0001722482
Period of Report: 2019-05-17

Reporting Person: GOLDMAN SACHS & CO. LLC (10% Owner)
Reporting Person: StoneBridge 2017, L.P. (10% Owner)
Reporting Person: StoneBridge 2017 Offshore, L.P. (10% Owner)
Reporting Person: VWR Partners, L.P. (10% Owner)
Reporting Person: Broad Street Principal Investments, L.L.C. (10% Owner)
Reporting Person: Bridge Street Opportunity Advisors, L.L.C. (10% Owner)
Reporting Person: GOLDMAN SACHS GROUP INC (10% Owner)
Reporting Person: StoneBridge 2018, L.P. (10% Owner)
Reporting Person: StoneBridge 2018 Offshore, L.P. (10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2019-05-17	Common Stock, par value $0.01 per share	P	13099	$14.00	Acquired	67619397	Indirect
2019-05-17	Common Stock, par value $0.01 per share	S	14049	$14.00	Disposed	67605348	Indirect
2019-07-31	Common Stock, par value $0.01 per share	P	55	$17.5476	Acquired	72612230	Indirect
2019-07-31	Common Stock, par value $0.01 per share	S	55	$17.5476	Disposed	72612175	Indirect
2019-08-06	Common Stock, par value $0.01 per share	P	88	$16.66	Acquired	72614264.87	Indirect
2019-08-06	Common Stock, par value $0.01 per share	S	88	$16.66	Disposed	72614176.87	Indirect
2019-08-12	Common Stock, par value $0.01 per share	P	16245	$16.5133	Acquired	72632694	Indirect
2019-08-12	Common Stock, par value $0.01 per share	S	16245	$16.5133	Disposed	72616449	Indirect
2019-08-12	Common Stock, par value $0.01 per share	P	9	$16.66	Acquired	72616458	Indirect
2019-08-12	Common Stock, par value $0.01 per share	S	9	$16.66	Disposed	72616449	Indirect
2019-09-06	Common Stock, par value $0.01 per share	P	67437	$16.5133	Acquired	72683598	Indirect
2019-09-06	Common Stock, par value $0.01 per share	S	67437	$16.5133	Disposed	72616161	Indirect
2019-09-06	Common Stock, par value $0.01 per share	P	49200	$17.0639	Acquired	72665361	Indirect
2019-09-06	Common Stock, par value $0.01 per share	S	49200	$17.0639	Disposed	72616161	Indirect
2019-09-09	Common Stock, par value $0.01 per share	P	149694	$16.4566	Acquired	72773570.99	Indirect
2019-09-09	Common Stock, par value $0.01 per share	S	149694	$16.4566	Disposed	72623876.99	Indirect
2019-09-25	Common Stock, par value $0.01 per share	P	1768	$14.70	Acquired	72621850.41	Indirect
2019-09-25	Common Stock, par value $0.01 per share	S	1768	$14.70	Disposed	72620082.41	Indirect
2019-09-25	Common Stock, par value $0.01 per share	P	4146	$14.76	Acquired	72624228.41	Indirect
2019-09-25	Common Stock, par value $0.01 per share	S	4146	$14.76	Disposed	72620082.41	Indirect
2019-09-25	Common Stock, par value $0.01 per share	P	100	$14.775	Acquired	72620182.41	Indirect
2019-09-25	Common Stock, par value $0.01 per share	S	100	$14.775	Disposed	72620082.41	Indirect
2019-09-25	Common Stock, par value $0.01 per share	P	3800	$14.78	Acquired	72623882.41	Indirect
2019-09-25	Common Stock, par value $0.01 per share	S	3800	$14.78	Disposed	72620082.41	Indirect
2019-09-25	Common Stock, par value $0.01 per share	P	100	$14.785	Acquired	72620182.41	Indirect
2019-09-25	Common Stock, par value $0.01 per share	S	100	$14.785	Disposed	72620082.41	Indirect
2019-09-25	Common Stock, par value $0.01 per share	P	5164	$14.79	Acquired	72625246.41	Indirect
2019-09-25	Common Stock, par value $0.01 per share	S	5164	$14.79	Disposed	72620082.41	Indirect
2019-09-25	Common Stock, par value $0.01 per share	P	9922	$14.80	Acquired	72630004.41	Indirect
2019-09-25	Common Stock, par value $0.01 per share	S	9922	$14.80	Disposed	72620082.41	Indirect

Footnotes

F1: These transactions in the common stock (the "Common Stock") of Avantor, Inc. (the "Issuer") have not previously been reported on Form 4 and were effected by Goldman Sachs & Co. LLC ("Goldman Sachs") acting as agent on behalf of certain international affiliates that had entered into riskless principal trades in connection with client trade facilitation in the ordinary course of their business.

F2: Without conceding riskless principal trades in connection with client trade facilitation in the ordinary course of business can result in liability under Section 16(b) of the Securities Exchange Act of 1934 (the "Exchange Act"), the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that they were subject to Section 16(b) has been remitted to the Issuer.

F3: This statement is being filed by The Goldman Sachs Group, Inc. ("GS Group"), Goldman Sachs, Broad Street Principal Investments, L.L.C. ("BSPI"), StoneBridge 2017, L.P. ("StoneBridge 2017"), StoneBridge 2017 Offshore, L.P. ("StoneBridge 2017 Offshore"), VWR Partners, L.P. ("VWR"), StoneBridge 2018, L.P. ("StoneBridge 2018"), StoneBridge 2018 Offshore, L.P. ("StoneBridge 2018 Offshore" and, together with StoneBridge 2017, StoneBridge 2017 Offshore, VWR and StoneBridge 2018, the "GS Funds") and Bridge Street Opportunity Advisors, L.L.C. ("Bridge Street"). GS Group, Goldman Sachs, BSPI, the GS Funds and Bridge Street are defined collectively as the "Reporting Persons".

F4: Bridge Street is the sole general partner of each of the GS Funds and may be deemed to beneficially own shares of Common Stock by reason of direct beneficial ownership of such shares by the GS Funds.

F5: Goldman Sachs and GS Group may be deemed to beneficially own indirectly shares of Common Stock by reason of direct beneficial ownership of such shares by the GS Funds and BSPI. Bridge Street, the sole general partner of each of the GS Funds, is an indirect wholly-owned subsidiary of GS Group. Goldman Sachs is the manager of BSPI and Bridge Street, and the investment manager of each of the GS Funds. Goldman Sachs is a direct subsidiary of GS Group.

F6: As of November 6, 2020, Goldman Sachs and GS Group may have been deemed to beneficially own indirectly, in the aggregate, 43,481,933 shares of the Common Stock of the Issuer by reason of the direct or indirect beneficial ownership of such shares as follows: (i) BSPI owned directly 10,507,085 shares of Common Stock, (ii) StoneBridge 2017 owned directly 683,221 shares of Common Stock, (iii) StoneBridge 2017 Offshore owned directly 315,779 shares of Common Stock, (iv) VWR owned directly 29,007,209 shares of Common Stock, (v) StoneBridge 2018 owned directly 2,089,674 shares of Common Stock and (vi) StoneBridge 2018 Offshore owned directly 878,965 shares of Common Stock.

F7: Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Section 16 of the Exchange Act, or for any other purpose.